Male Reproduction

Question 1

How long does Spermatogenesis take?

Answer 1

74 days + 12 days to exterior

Question 2

Tunica Albuginea is made of what?

Answer 2

Dense irregular collagenous connective tissue

Question 3

What is a thickening of the tunica Albuginea where the epididymis attaches called?

Answer 3

Mediastinum testes

Question 4

What does the Tunica Vasculosa contain?

Answer 4

Blood Vessels

Question 5

What do testicular lobes contain?

Answer 5

1-4 seminiferous tubercles

Question 6

Where are sperm created?

Answer 6

in the seminiferous epithelium of seminiferous tubercles

Question 7

What secrets testosterone? And how is it stored?

Answer 7

Interstitial cells (of Leydig)
Testosterone is released immediately into blood stream (no storage)

Question 8

What are the 3 layers of seminiferous tubercles?

Answer 8

Tunica propria
-collagen
-myoid cells (contractile)
Basal lamina
Seminiferous Epithelium
-create sperm

Question 9

Spermatogenic cells begin formation (spermatogenesis) when?

Answer 9

during puberty

Question 10

What is the function of myoid cells?

Answer 10

Contractile, squeeze the tube (seminiferous tubercle)

Question 11

What is the function of the Sertoli cells?

Answer 11

Keep developing gametes safe

Question 12

What are the 2 epithelial compartments of the Sertoli cells? And how are they held together?

Answer 12

1) Basal Epithelial compartment
2) Luminal compartment

(ZO) occluding juntions

Question 13

What does the luminal compartment of Sertoli cells contain?

Answer 13

Haploid cells that differ from somatic cells

speratocyte->Early spermatid->Late spermatid->Early spermatozoa

Question 14

What des the basal compartment of Sertoli cells contain?

Answer 14

Spermatogonia

Question 15

What is the most immature sperm cells, where do they come from, and where are they stored?

Answer 15

Spermatogonia
from germ cells from the yolk sac
Stored in the basal epithelial compartment of Sertoli cells

Question 16

When are spermatogonia first present?

Answer 16

At birth, nothing happens until puberty

Question 17

How are spermatogonia replenished?

Answer 17

By Mitosis

Question 18

The morphological transformation of sperm from spermatids is called?

Answer 18

Spermiogenesis

Question 19

#n #d # s/d chromatid chromosomes
Spermatogonia

Answer 19

46s (2n 2d)

Question 20

#n #d # s/d chromatid chromosomes
Primary Spermatocyte

Answer 20

46d (2n 4d)

Question 21

#n #d # s/d chromatid chromosomes
Secondary Spermatocyte

Answer 21

23d (1n 2d)

Question 22

#n #d # s/d chromatid chromosomes
Spermatids

Answer 22

23s (1n 1d)

Question 23

#n #d # s/d chromatid chromosomes
Sperm

Answer 23

23s (1n 1d)

Question 24

What organelles do the Interstitial cells of Leydig contain?

Where are they found?

Answer 24

smooth ER
Lipid droplets
Mitochondria
Found in loose CT of Tunica Vasculosa

Question 25

What is the function of the seminal vesicle?

Answer 25

Makes fluid to nourish sperm (part of semen)

Question 26

What type of cells does the seminal vesicle contain?

Answer 26

Smooth muscle | pseudostratified columnar epithelium

Question 27

What two structures make up the intratesticular genital duct?

Answer 27

Rete testes | Tubli Recti

Question 28

What makes up the extra testicular genital ducts

Answer 28

Efferent ductules Duct of Epididymis Ductus Deferens (vas deferens) Ejaculatory duct

Question 29

What is the function of short nonciliated cells in the efferent ducutle

Answer 29

reabsorb extra fluid from sertoli cells

Question 30

Where do sperm become motile?

Answer 30

In the duct of epididymis

Question 31

Which part of the extratesticular genital ducts has smooth muscle?

Answer 31

``` Ductus Defrens (vas Defrens) 3 layers inner outer longitudinal ```

Question 32

The CT stroma of the prostate is developed from what?

Answer 32

the CT capsule

Question 33

What do the Psuedostratified columnar epithelium of the prostate gland secrete?

Answer 33

Protein high substance to nourish sperm

Question 34

What are the 3 layers of the compound tubuloalveloar glands of the prostate? Which zone has most cancer?

Answer 34

Mucosal zone submucosal zone Peripheral zone= 70% cancer

Question 35

Are concretion (corpora amylacea) in the prostate dangerous? what are they

Answer 35

not dangerous | buildup of protein

Question 36

How does benign prostatic hyperplasia (BPH) happen? And what does it result in?

Answer 36

Testosterone -> Prostate (stromal Cells)->Dihydroesterone (DHT)-> DHT&Testosterone bind to Nuclear androgen receptors in epithelial cells= growth factor activation Results in difficulty in urination

Question 37

What is the function of helicine arteries and vascular sinuses in penile erectile tissue

Answer 37

Helicine arteries supply blood to fill vascular sinuses during and erection

Question 38

What part of the penile erectile tissue does the urethra pass through?

Answer 38

Corpus spongiosum (ventral)

Question 39

What parts of the urethra have transitional epithelium?

Answer 39

Prostatic urethra

Question 40

What parts or the urethra contain stratified columnar epithelium?

Answer 40

Spongy urethra | Membranous urethra

Question 41

What is the function fo the Glands of Littre, Para-urethral glands, and Bowerman's glands ofcowper

Answer 41

Lubricate urethral lumen | Clear urethra of urine prior to ejaculation